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IrinaK [193]
3 years ago
13

What is 12+z if Z is 1/2

Mathematics
1 answer:
Lorico [155]3 years ago
4 0
All you have to do is plug in 1/2 where the z is so you would end up with 12+1/2 which equals 12 1/2
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Show your work please!
timofeeve [1]

Answer:

C

Step-by-step explanation:

10^5=100,000

100,000*4.7=470,000  (Four Hundred Seventy Thousand)

10^8=100000000

100000000*3.9=390,000,000 (Three Hundred Ninty Million)

10^5=100,000

100,000*5.2=520,000 (Five Hundred Two Thousand)

Least to Greatest:

470,000     520,000   390,000,000

I                       III                     II

C

6 0
3 years ago
Read 2 more answers
Kiran mixes \frac{3}{4}
Serhud [2]

Step-by-step explanation:

7.5 cups of raisins, 10 cups of peanuts and 5 cups of chocolate chips.

Step-by-step explanation:

We are given that,

The amount of ingredients needed for the trail mix are,

Raisins = \frac{3}{4}

4

3

cup

Peanuts = 1 cup

Chocolate chips = \frac{1}{2}

2

1

cup

Since, Kiran needs to make 10 cups of the trail mix.

The amount of ingredients needed will be,

Raisins = \frac{3}{4}\times 10

4

3

×10 = \frac{30}{4}

4

30

= 7.5 cups

Peanuts = 1 × 10 = 10 cups

Chocolate chips = \frac{1}{2}\times 10

2

1

×10 = 5 cups

Hence, the ingredients needed are 7.5 cups of raisins, 10 cups of peanuts and 5 cups of chocolate chips.

6 0
3 years ago
Read 2 more answers
Show that if x and y may both be written as the sum of the squares of two rational integers, then their product xy may also be w
Georgia [21]

Answer:

See proof below

Step-by-step explanation:

One way to solve this problem is to "add a zero" to complete the required squares in the expression of xy.

Let x=m^2+n^2 and y=l^2+k^2 with m,n,l,k\in \mathbb{Z}. Multiplying the two equations with the distributive law and reordering the result with the commutative law, we get xy=(m^2+n^2)(l^2+k^2)=m^2l^2+m^2k^2+n^2l^2+n^2k^2=n^2l^2+m^2k^2+m^2l^2+n^2k^2

Now, note that 0=2lkmn-2lkmn=2nkml-2nlmk by the commutativity of rational integers. Add this convenient zero the the previous equation to obtain xy=n^2l^2-2nlmk+m^2k^2+m^2l^2+2nkml+n^2k^2=(nl-mk)^2+(ml+nk)^2, thus xy is the sum of the squares of nl-mk,ml+nk\in \mathbb{Z}.

7 0
3 years ago
30% of what number equals 9
Bumek [7]

Answer:

The number is 30

Step-by-step explanation:

Of means multiply and is means equals

30% * N = 9

Change to decimal form

.3 * N = 9

Divide each side by .3

.3/.3 *N = 9/.3

N = 30

5 0
3 years ago
State whether the data described below are discrete or continuous, and explain why.
Orlov [11]

Answer:

The correct answer:

The data are continuous because the data can take on any value in an interval. (A)

Step-by-step explanation:

There are two categories of data:

Discrete data: These are data that have specific values that they can take on. There are limits to what values can be assigned to such categories. for example, The number of countries in a continent, there can either be 15 countries, 50 countries 30 countries, etc. There is not a possibility of having 40.56 countries on this kind of list. hence it is a discrete dataset.

Continuous data are data that can take on any value within an interval or on a particular scale of measurement. In this example, the height of the elephant in meters can be 1.5m, 2m, 1.06m, etc. There is no limit to the possibility of the height of an elephant on a meter scale.

4 0
3 years ago
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